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Thinking Machines: Inkling vs OpenAI: GPT-5.4 Mini

Side-by-side comparison of specs, pricing, benchmark scores, and task rankings. Updated 2026-07-18.

Thinking Machines: Inkling OpenAI: GPT-5.4 Mini
Vendorthinkingmachinesopenai
Quality Score100100
Benchmark Score-70.8
Input Price$1.00/M$0.75/M
Output Price$4.05/M$4.50/M
Context Window1,048,576400,000
Max Output-128,000
Tool Calling✓✓
Structured Output-✓
Reasoning Mode✓✓
Vision✓✓
Audio✓-
Benchmark Scores
ai_index-66.0
ai_index_agentic-49.8
ai_index_coding-92.5

Who wins by task?

TaskThinking Machines: InklingOpenAI: GPT-5.4 Mini
SQL Generation 125 164
Code Review 128 159
Code Completion 119 132
Code Refactoring 132 158
Bug Fixing 136 170
Unit Test Generation 116 148
Code Documentation 131 140
Regex Writing 119 132
CI/CD Pipelines 116 139
Frontend Component Design 118 141
Data Analysis 120 160
CSV / Spreadsheet Cleanup 121 151
ETL Scripting 124 149
JSON Extraction 111 146
Bulk Data Labeling 116 133
OCR / Document Parsing 123 144
Table Extraction from PDFs 123 144
Long-Document Summarization 137 154
Short-Form Summarization 115 129
Blog Post Writing 121 136

Scores reflect capability match + benchmark data + pricing for each task. Methodology →

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